Search claims · PlantClaims

Observationobservedoriginal resultmeasured

Claim · model-written summary

Depolarization was followed by transient hyperpolarization.

Taxon: broad beanVicia fabat0
Outcome: transient hyperpolarizatione0

Verbatim

e0
“This depolarization was followed by a transient hyperpolarization”
✓ located verbatim in the source · abstract, characters 853–918

t0
“broad bean”
✓ located after whitespace/quote normalisation · title, characters 31–41

Title

Proton-Peptide Co-Transport in Broad Bean Leaf Tissues

A. Jamai; J. F. Chollet; S. Delrot PLANT PHYSIOLOGY 1994. doi:10.1104/pp.106.3.1023

Other claims from this paper (15)

Observation Gly-Gly transport rate was similar to Gly uptake in glycine equivalents.
Observation Gly-Gly uptake occurred mainly in mesophyll cells, with little vein accumulation.
Observation Gly-Gly uptake was optimal at pH 6.0.
Intervention effect Gly-Gly uptake was sensitive to thiol reagents and metabolic inhibitors.
Observation Gly-Gly uptake had one saturable phase with an apparent Michaelis constant of 16 mM.
Intervention effect Gly-Gly did not inhibit labeled Gly uptake.
Intervention effect Gly-Gly caused a concentration-dependent rise in medium pH.
Intervention effect Gly-Gly induced concentration-dependent mesophyll depolarization with an apparent Michaelis constant of 15 mM.
Intervention effect Several peptides and tripeptides inhibited Gly-Gly uptake at tenfold excess.
Intervention effect Gly only slightly inhibited Gly-Gly uptake.
Intervention effect TetraGly did not inhibit Gly-Gly uptake.
Intervention effect Glutathione did not inhibit Gly-Gly uptake.
Intervention effect Dipeptides that inhibited Gly-Gly uptake changed mesophyll membrane potential.
Intervention effect Dipeptides changed the membrane response normally induced by Gly-Gly.
Mechanism The data indicate a low-affinity, broad-specificity H+/peptide cotransporter in mesophyll plasma membrane.

Associationobservedoriginal resultmeasured

Claim · model-written summary

Lithium caused hyperpolarization of guard cells.

Taxon: several speciese0
Treatment: Lithiume1
Outcome: hyperpolarizatione1

Not reportedDirection

Verbatim

e0
“Guard cells of several species, but predominantly Commelina communis, were impaled by micropipette electrodes”
✓ located verbatim in the source · abstract, characters 0–109

e1
“Lithium caused hyperpolarization”
✓ located verbatim in the source · abstract, characters 1029–1061

Title

Electrical Potentials in Stomatal Complexes

Robert A. Saftner; Klaus Raschke PLANT PHYSIOLOGY 1981. doi:10.1104/pp.67.6.1124

Other claims from this paper (12)

Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Blue light induces hyperpolarization.

Taxon: Beant0
Treatment: blue lighte0
Outcome: hyperpolarizatione0

Not reportedComparatorDirection

Verbatim

t0
“Bean (Phaseolus vulgaris)”
✓ located verbatim in the source · title, characters 55–80

e0
“blue light induces a hyperpolarization”
✓ located verbatim in the source · abstract, characters 615–653

Title

Influence of Light on the Bioelectric Potential of the Bean (Phaseolus vulgaris) Hypocotyl Hook

ELMAR HARTMANN Physiologia Plantarum 1975. doi:10.1111/j.1399-3054.1975.tb03167.x

Other claims from this paper (7)

Observation Bean hypocotyl potential changes lack red–far red reversibility.
Association Light-triggered potential changes in green bean hooks correlate with photosynthetic electron transport.
Intervention effect Red light induces depolarization.
Intervention effect Etiolated beans show no bioelectric potential change under red or far red light.
Intervention effect Blue and white light induce strong hyperpolarization in etiolated hook cells.
Intervention effect Inhibitors of electron transport and oxidative phosphorylation influence the light-induced action potential.
Association The action spectrum of the light-induced action potential resembles extracted carotenoid and xanthophyll absorption spectra.

Associationobservedoriginal resultmeasured

Claim · model-written summary

Hyperpolarization depended on ABA concentration.

Treatment: ABAe0
Outcome: hyperpolarizatione0

Not reportedTaxonDirection

Verbatim

e0
“The hyperpolarization was ABA-concentration dependent.”
✓ located verbatim in the source · abstract, characters 640–694

Title

Abscisic Acid-Induced Membrane Potential Changes in Barley Aleurone Protoplasts: a Possible Relevance for the Regulation of rab Gene Expression

Sjoukje Heimovaara-Dijkstra; Bert van Duijn; Kees R. Libbenga; et al. Plant and Cell Physiology 1994. doi:10.1093/oxfordjournals.pcp.a078652

Other claims from this paper (10)

Observation Resting membrane potential was about −53 mV, agreeing with microelectrode measurements of about −55 mV.
Association Resting membrane potential depended on external pH.
Intervention effect ABA transiently hyperpolarized the membrane to −62 mV.
Intervention effect DES prevented hyperpolarization.
Intervention effect Micanozole prevented hyperpolarization.
Mechanism Hyperpolarization was interpreted as consistent with H+-ATPase activation.
Intervention effect BaCl2 prolonged hyperpolarization.
Mechanism Hyperpolarization was suggested to open K+ channels.
Intervention effect DES inhibited ABA-induced gene expression.
Intervention effect BaCl2 had a slight inhibitory effect on ABA-induced gene expression.

Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Exogenous spermidine induced a hyperpolarization activated calcium current.

Taxon: ArabidopsisArabidopsist0
Treatment: exogenous Spde0
Outcome: hyperpolarization-activated Ca(2+) currente0

Not reportedComparatorDirection

Verbatim

e0
“exogenous Spd induces a hyperpolarization-activated Ca(2+) current”
✓ located verbatim in the source · abstract, characters 364–430

t0
“two Arabidopsis mutants”
✓ located verbatim in the source · abstract, characters 1012–1035

Title

Spermidine oxidase-derived H2O2 regulates pollen plasma membrane hyperpolarization-activated Ca2+-permeable channels and pollen tube growth

Juyou Wu; Zhonglin Shang; Jun Wu; et al. The Plant Journal 2010. doi:10.1111/j.1365-313x.2010.04301.x

Other claims from this paper (7)

Intervention effect Spermidine increased cytosolic calcium during pollen tube growth.
Intervention effect Spermidine did not increase channel open probability in excised patches.
Mechanism Hydrogen peroxide from polyamine oxidase mediated spermidine oxidation triggers pollen calcium channel opening.
Intervention effect AtPAO3 deficient mutant pollen failed to open calcium channels in response to spermidine.
Observation The AtPAO3 mutants had reduced pollen tube growth.
Observation The AtPAO3 mutants had reduced seed number.
Intervention effect High spermidine triggered calcium influx beyond the optimum with a deleterious effect.

Observationobservedoriginal resultmeasured

Claim · model-written summary

Potassium influx through potassium channels caused membrane potential hyperpolarization in wheat.

Taxon: WheatTriticum aestivumt0
Outcome: MP hyperpolarizatione0

Not reportedTreatmentDirection

Verbatim

t0
“Wheat”
✓ located verbatim in the source · title, characters 74–79

e0
“通过 K+ 隧道的 K+ 流入导致了 MP hyperpolarization”
✓ located verbatim in the source · abstract, characters 253–292

Title

Membrane-Potential Alteration During K＋ Uptake of Different Salt-Tolerant Wheat Varieties

Wang; Yu-qian; Xiaoli; et al. 中国农业科学：英文版 2010

Other claims from this paper (4)

Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Auxin alone did not induce hyperpolarization in mature segments.

Taxon: Vigna unguiculataVigna unguiculatat0
Treatment: auxin alonee0
Outcome: hyperpolarization of the symplast membranee0
Direction: no hyperpolarizatione0

Not reportedOrgan / stageComparator

Verbatim

t0
“Vigna unguiculata”
✓ located verbatim in the source · title, characters 93–110

e0
“no hyperpolarization of the symplast membrane was observed upon the perfusion with auxin alone”
✓ located verbatim in the source · abstract, characters 511–605

Title

Effects of Gibberellin on Auxin-Induced Hyperpolarization of Cell Membranes in Hypocotyls of Vigna unguiculata

Shin-ichirou Hasuike; Hisashi Okamoto Plant and Cell Physiology 1994. doi:10.1093/oxfordjournals.pcp.a078681

Other claims from this paper (4)

Intervention effect GA3 pretreatment enabled auxin-induced hyperpolarization in mature segments.
Observation The restored hyperpolarization occurred without increased growth rate.
Mechanism GA3 may restore the mature-zone response of proton pumping to auxin.
Mechanism Tissue gibberellin concentration may control auxin activation of the proton pump.

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

NaCl caused dose-dependent mesophyll membrane hyperpolarization in wild rice.

Taxon: O. coarctataOryza coarctatae0
Treatment: NaCle0
Outcome: hyperpolarization in the mesophyll cellse0
Direction: hyperpolarizatione0
Qualifier: higher preference for Cl − uptakee0

Not reportedComparator

Verbatim

e0
“O. coarctata had NaCl dose-dependent hyperpolarization in the mesophyll cells, due to its higher preference for Cl − uptake.”
✓ located verbatim in the source · abstract, characters 1004–1128

Title

Chloride-dependent plasma membrane hyperpolarization confers superior salinity tissue tolerance in wild rice Oryza coarctata

Ping Yun; Celymar Angela Solis; Babar Shahzad; et al. The Crop Journal 2025. doi:10.1016/j.cj.2025.04.002